Description of problem: The ability to change a volume's type has been added to cinder's api v2. This ability, to edit & change the volume's type, will provide the users that work with the web UI, in the long run, to migrate volumes or to change any volumes setting (that are set from the volume's type). The upstream blueprint is: https://blueprints.launchpad.net/horizon/+spec/volume-retype
*** Bug 1103503 has been marked as a duplicate of this bug. ***
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2015-0154.html